Finding the Fourth Proportional to 2,709.92, 4,066.78 and 1,066.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709.92 : 4,066.78 = 1,066.52 : x
2. Step 2: Convert to fraction form
   2,709.92/4,066.78 = 1,066.52/x
3. Step 3: Cross multiply
   2,709.92x = 4,066.78 × 1,066.52
4. Step 4: Simplify right side
   2,709.92x = 4,337,302.21
5. Step 5: Solve for x
   x = 4,337,302.21/2,709.92
6. Step 6: Final answer
   x = 1,600.53